ANSWER
[tex]F\text{ = }\frac{5}{9C}\text{ + 32}[/tex]EXPLANATION
We have that the formula for temperature in degree Celsius is:
[tex]C\text{ = }\frac{5}{9(F\text{ - 32)}}[/tex]To solve for F, we have to make F subject of formula:
[tex]\begin{gathered} Cross\text{ multiply:} \\ C\cdot\text{ 9(F - 32) = 5} \\ \text{Divide through by 9C:} \\ F\text{ - 32 = }\frac{5}{9C} \\ \text{Add 32 to both sides:} \\ F\text{ = }\frac{5}{9C}\text{ + 32} \end{gathered}[/tex]That is the answer.